After some speculation in another thread about this, I asked about this on their Facebook page today:
Thank you for asking David! The 2012 Season Passes should be available for online purchase by Saturday, November 5th. And yes, the new "Guest Program" that is in your November Times is replacing the past "Bring-A-Friend" program. We look forward to seeing you in 2012!
This is how they are described on the back page of the Times:
Season Pass holder must accompany guest & present pass, photo ID and matching voucher valid during the correct date at any ticket booth to receive your FREE guest ticket
So I'm guessing they are actually going to start keeping track of who is using the free tickets. Sounds like the passholder will actually receive vouchers that have to be exchanged for actual tickets at the park. I really wonder how much thought they've given to this considering what it's going to do to the ticket booth lines. For example, we buy 6 season passes and frequently take 5 or 6 people with us to use the BAF's. Now, according to their instructions, all 6 of are going to have to go to the ticket booth, show our ID and season pass, give them the voucher and get the actual ticket one at a time. Take that x the number of pass holders each year who use baf's x the 5 different date ranges they are available and it sounds like an absolute disaster waiting to happen at the ticket booths.